PALEONTOLOQIC NOTES FAUNA 



167 



Polyphemopsis peracutu3 M. & W. 

 Phanerotrema grayvillense N. & P. sp 



Fleurotomaria carhonaria 



Worthenia speciosa M. & W. sp. . . 



Worthenia tahulata Con. sp 



■Orthoceras cribrosum Geinitz.. 

 Tainoceras occidentalis Swall. sp. . 



Nautilus ortoni Whitf 



Nautilus subquadrangularis Whitf 

 ThilUpsia sangamonensis M. & W.* 



2 

 2 

 2 



5 

 5 

 5 



7 

 7 



The Monongahela and higher formations, so far as known, have 

 yielded very few forms : a Solenomya from shale above the Sewickley coal 

 bed, two species of Naiadites from the Uniontown limestone, and nnde- 

 termined ostracoids from some of the limestones make up the list. 



The number of species recorded is considerable, but the distribution as 

 given in the table shows the scantiness of material for comparison, for it 

 is very certain that the vertical range of some of the species is much 

 greater than represented. No locality has been studied with any degree 

 ■oi care, except a little area near Morgantown in West Virginia, where 

 was obtained the collection examined by Mr Meek in 1870. The Ames 

 limestone fauna alone has been observed on both sides of the basin, and 

 ■even this only in the northern portion. There, however, one interesting 

 feature has been noted, for in Ohio four species occur abundantly, which 

 are very common in the Mississippi Valley areas, but are wholly un- 

 known at any of the numerous localities where the bed has been ex- 

 .amined along the east side of the Basin. There is no information on the 

 western border respecting the fauna of the Putnam Hill and Vanport 

 limestones or that of the shales overl3dng the Middle Kittanning coal 

 had. Until proper study of the fauna at each horizon has been made, 

 no opinion can be expressed as to the value of the fauna for correlation. 

 The forms already reported are for the most part only those which are 

 the most familiar, with extended vertical as well as geographical dis- 

 tribution. 



Some lists of fossil invertebrates by Messrs Meek, Prosser, Bennett, 

 .and Hallji" giving forms obtained from the higher Carboniferous beds 

 along the Missouri river in Kansas and Nebraska, afford opportunity 

 for comparison with the northern part of the Appalachian basin. 



Mr Meek's fossils came from the higher beds of the Upper Coal 



* The writer is under obligation to Mr George H. Girty, who has corrected the generic 

 ■names in this list ; but Mr Girty is not to be held responsible for any errors, as he has 

 not had the opportunity to read the proof. 



t F. B. Meek : Final Rept. of U. S. Geol. Survey of Nebraska, pp. 124-127. 

 Bennett and Hall : University of Kansas Geol. Survey, vol. iii, pp. 68-72. 

 C. S. Prosser : The same, vol. ii, p. 59. .„_ i 



